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kotlinlang

does Kotlin have some kind of index type? for example, I want to pass a List, and an index into that List. I could pass just an Int as the index, but it's possible that is outside the bounds of the list. I was wondering if there was some kind of type-safe way to tie the two together?

Hmm, sounds like a job for a `List`? They are indexed by nature and if you need “empty” places, allow `null`able types.

that's not quite what I want. Normally I'd pass just the sublist that I'm interested in, or just the element, but in this case, I need to know where in the list I am, and have access to the whole list

You might be interested in `list.getOrNull(index)` . It returns null if the index in out of bounds

yeah, that seems like what I need. Thanks